From owner-dev-commits-src-branches@freebsd.org Mon Apr 26 15:45:08 2021 Return-Path: Delivered-To: dev-commits-src-branches@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id C6B035E59A5; Mon, 26 Apr 2021 15:45:08 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4FTTjw4zqDz3mX2; Mon, 26 Apr 2021 15:45:08 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 9BC442119; Mon, 26 Apr 2021 15:45:08 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.16.1/8.16.1) with ESMTP id 13QFj8P5012941; Mon, 26 Apr 2021 15:45:08 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 13QFj8vX012940; Mon, 26 Apr 2021 15:45:08 GMT (envelope-from git) Date: Mon, 26 Apr 2021 15:45:08 GMT Message-Id: <202104261545.13QFj8vX012940@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org From: Neel Chauhan Subject: git: da6a8ccfa293 - stable/13 - linuxkpi: Implement atomic_dec_and_lock_irqsave() MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: nc X-Git-Repository: src X-Git-Refname: refs/heads/stable/13 X-Git-Reftype: branch X-Git-Commit: da6a8ccfa293c3c831fdde51169754fcb9587657 Auto-Submitted: auto-generated X-BeenThere: dev-commits-src-branches@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Commits to the stable branches of the FreeBSD src repository List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 26 Apr 2021 15:45:08 -0000 The branch stable/13 has been updated by nc (ports committer): URL: https://cgit.FreeBSD.org/src/commit/?id=da6a8ccfa293c3c831fdde51169754fcb9587657 commit da6a8ccfa293c3c831fdde51169754fcb9587657 Author: Neel Chauhan AuthorDate: 2021-04-26 15:15:49 +0000 Commit: Neel Chauhan CommitDate: 2021-04-26 15:44:30 +0000 linuxkpi: Implement atomic_dec_and_lock_irqsave() This is needed by the drm-kmod 5.5 update. Reviewed by: hselasky, manu MFC after: 3 days Differential Revision: https://reviews.freebsd.org/D29988 (cherry picked from commit ce65353ac1a17677bef03e96df8da967c9086743) --- sys/compat/linuxkpi/common/include/linux/spinlock.h | 13 +++++++++++++ sys/sys/param.h | 2 +- 2 files changed, 14 insertions(+), 1 deletion(-) diff --git a/sys/compat/linuxkpi/common/include/linux/spinlock.h b/sys/compat/linuxkpi/common/include/linux/spinlock.h index 2309794b26ec..7ef474b671dc 100644 --- a/sys/compat/linuxkpi/common/include/linux/spinlock.h +++ b/sys/compat/linuxkpi/common/include/linux/spinlock.h @@ -31,6 +31,7 @@ #ifndef _LINUX_SPINLOCK_H_ #define _LINUX_SPINLOCK_H_ +#include #include #include #include @@ -160,4 +161,16 @@ spin_lock_destroy(spinlock_t *lock) mtx_assert(&(_l)->m, MA_OWNED); \ } while (0) +static inline int +atomic_dec_and_lock_irqsave(atomic_t *cnt, spinlock_t *lock, + unsigned long flags) +{ + spin_lock_irqsave(lock, flags); + if (atomic_dec_and_test(cnt)) { + return (1); + } + spin_unlock_irqrestore(lock, flags); + return (0); +} + #endif /* _LINUX_SPINLOCK_H_ */ diff --git a/sys/sys/param.h b/sys/sys/param.h index 1930af51f7da..a08ec36f6fcc 100644 --- a/sys/sys/param.h +++ b/sys/sys/param.h @@ -60,7 +60,7 @@ * in the range 5 to 9. */ #undef __FreeBSD_version -#define __FreeBSD_version 1300501 /* Master, propagated to newvers */ +#define __FreeBSD_version 1300502 /* Master, propagated to newvers */ /* * __FreeBSD_kernel__ indicates that this system uses the kernel of FreeBSD,